Halloween has always been a simple holiday. Wear a costume, go trick-or-treating. go to a party, watch a movie, eat a bunch of chocolate. As for the Corneille baseball team, it's anything but simple. One week before Halloween, they begin to receive ominous texts and letters from an unknown person, telling them to do various tasks otherwise they will suffer horrible consequences. At first, they all think it's a prank but when creepy things begin happening to them, they begin to think otherwise and decide it might be best to just listen to the anonymous messenger. No matter what these tasks might be.